If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

Which is heavier: a ton of bricks or a ton of feathers?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

Detective Rockford was jogging near the beach at 4:30 am.
He hears a sound near the shack "No Michael, Please Do not shoot me".
Next instance he heard the sound of gunfire. Rockford rushes to the shack where he finds women lying dead and a gun in close proximity of three "Doctore Lawyer and a Teacher".

Rockford immediately knew that the Lawyer has committed the crime. How?

The captain of a ship is telling you an interesting story and then poses a question. He says, “I have travelled the oceans far and wide. One time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly. Can you tell me how that was possible?”

Find out the missing number in the picture attached:

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?